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My Asus monitor won't connect via HDMI to my new Windows 11 laptop.

Jane Valere 0 Reputation points
2026-03-22T19:59:47.76+00:00

I know it's not the HDMI cable as it works on two other laptops (running Windows 10). Windows 11 says it can't detect. Is there something wrong with the HDMI port on my new laptop?? I've done everything - reset, reboot, power on/off, unplug/plug. I'm sure when contact HP they'll say it's a software issue so I'm screwed.

Windows for home | Windows 11 | Devices and drivers
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  1. Ivan B 107K Reputation points Independent Advisor
    2026-03-22T20:32:26.7333333+00:00

    Hi,

    What is the model of your HP laptop?

    Thanks

  2. Q&A Assist
    2026-03-22T20:00:00.6933333+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    Work through these checks to narrow down whether this is Windows 11/software or a hardware/port issue.

    1. Confirm Windows is set to use an external display
      • Press Windows logo key + P.
      • Select Extend (or Duplicate) and wait a few seconds to see if the monitor wakes up.
    2. Basic hardware checks (even if they worked on other PCs)
      • Disconnect all other accessories/docks/adapters from the laptop; they can cause conflicts.
      • Make sure the HDMI cable is fully seated in both the laptop and the monitor.
      • Try a different HDMI cable anyway; some laptops are more sensitive to marginal cables.
      • Test the Asus monitor with another system (already done) and, if possible, test the new laptop with a different external monitor or TV via HDMI.
        • If the laptop fails with multiple displays, the HDMI port or its driver/firmware is suspect.
    3. Try another video output (if available)
      • If the laptop has another video output (USB‑C/DisplayPort, mini‑DP, etc.), connect the Asus monitor using that port (directly or with a proper adapter).
      • If another port works but HDMI never does, that strongly points to a hardware or firmware issue with the HDMI port.
    4. Check and repair the display driver
      • Open Device Manager (search for device manager on the taskbar).
      • Expand Display adapters and note the adapter name.
      • Right‑click the adapter → Properties → Driver tab.
      a) If the issue started after an update, try Roll Back Driver:
      • Select Roll Back Driver and follow the prompts.
      • Reboot and test HDMI again.
      b) If Roll Back Driver is not available or does not help, reinstall the driver:
      • In Device Manager, right‑click the display adapter → Uninstall device.
      • Check Attempt to remove the driver for this device, then select Uninstall.
      • Restart the laptop when prompted.
      • After restart, open Device Manager again, expand Display adapters.
      • Right‑click the adapter → Update driver → Search automatically for updated driver software and complete the installation.
      • Test HDMI again.
    5. If still not detected
      • At this point, if the HDMI port fails with:
        • multiple known‑good cables, and
        • multiple known‑good monitors/TVs, and
        • after driver rollback/reinstall, then it is reasonable to suspect a hardware or firmware problem with the laptop’s HDMI output.
      • Because the monitor and cable work on other devices, use this evidence when contacting the laptop manufacturer’s support to push for hardware diagnostics or repair.
    6. Report to Microsoft if it looks OS‑related
      • If HDMI works intermittently or only after certain Windows updates, use Feedback Hub to file a bug with exact steps and hardware details. This helps identify Windows 11‑specific issues.

    References:

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